It's not just the Wii U. Western developers don't want to support the Vita, the Wii U or the 3DS... The real story going on here is that western devs are focusing their efforts on the PS4+720+PC combo. PS4 and 720 won't overshoot the market *that* much this time and budgets won't increase as dramatically as from 6th to 7th gen. Developers and publishers will completely focus on these three machines I guess. Some probably had Wii U games in development "just in case" (ports mostly, I guess) but now there's an excuse to cancel these projects they'll focus all their resources on the other home machines.